19449-2338 MTG 4
19h 44m 53.80s -23° 37' 59.3" P.A. 313.00 sep 0.2 mag 14.60,15.30 Sp M4.5V
| Coord 2000 |
19449-2338 |
|
Discov num |
MTG 4 |
|
Comp |
|
|
Coord arcsec 2000 |
19 44 53.80 -23 37 59.3 |
|
| Date first |
2004 |
|
Date last |
2021 |
|
Obs |
11 |
|
| Pa first |
355 |
|
Pa last |
312.9 |
|
P.A. Now (θ) |
312.9° |
|
| Sep first |
0.8 |
|
Sep last |
0.246 |
|
Sep. Now (ρ) |
0.246" |
|
| Mag pri |
14.60 |
|
Mag sec |
15.30 |
|
delta mag (ΔM) |
0.7 |
|
Spectral class |
M4.5V (red) |
|
| Pri motion ra |
+320 |
|
Sec motion ra |
|
|
| Pri motion dec |
-167 |
|
Sec motion dec |
|
|
| Notes |
N
O
(See Notes, Orbital solution) |
|
This double is physical.
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Sagittarius |
|
ORBITAL ELEMENTS
| Period (P) | 60y | |
Periastron (T) | 2028.24y | |
Semi-major axis (a) | 0.703a | |
| Eccentricity (e) | 0.271 | |
Inclination (i) | 105.1° | |
Longitude of periastron (ω) | 316° | |
| Node (Ω) | 168.9° | |
Notes | | |
Reference | Tok2021f | |
| Equinox | 2000 | |
Last observation | 2021 | |
Grade | 4 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
0.3 |
0.720 |
| 2001 |
358.9 |
0.747 |
| 2002 |
357.6 |
0.771 |
| 2003 |
356.4 |
0.791 |
| 2004 |
355.2 |
0.807 |
| 2005 |
354.1 |
0.819 |
| 2006 |
353.0 |
0.826 |
| 2007 |
351.9 |
0.829 |
| 2008 |
350.8 |
0.826 |
| 2009 |
349.7 |
0.818 |
| 2010 |
348.6 |
0.805 |
| 2011 |
347.4 |
0.787 |
| 2012 |
346.2 |
0.762 |
| 2013 |
344.9 |
0.732 |
| 2014 |
343.4 |
0.696 |
| 2015 |
341.8 |
0.654 |
| 2016 |
339.9 |
0.605 |
| 2017 |
337.7 |
0.551 |
| 2018 |
334.9 |
0.491 |
| 2019 |
331.4 |
0.426 |
| 2020 |
326.5 |
0.357 |
| 2021 |
319.2 |
0.286 |
| 2022 |
307.2 |
0.217 |
| 2023 |
285.7 |
0.162 |
| 2024 |
251.9 |
0.143 |
| 2025 |
220.5 |
0.173 |
| 2026 |
201.8 |
0.232 |
| 2027 |
191.1 |
0.300 |
| 2028 |
184.3 |
0.365 |
| 2029 |
179.5 |
0.424 |
| 2030 |
175.8 |
0.473 |
|
|
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
|
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|
|
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Measures: green=micrometric, blue=interferometric, purple=photographic |
|
WDS 19449-2338 MTG 4 : NOTES
| discov_num |
notes |
refcode |
| MTG 4 |
Also known as LP 869-26. |
|
|
Parallax = 67.87 +/- 1.10 mas. |
JLB2017 |
REFERENCES
| refcode |
metd |
author |
reference |
| JLB2017 |
not - |
Bartlett, J.L., Lurie, J.C., Riedel, A., Ianna, P.A., Jao, W.-C., Henry, T.J., |
2017AJ....154..151B |
| JLB2017 |
|
Winters, J.G., Finch, C.T., & Subasavage, J.P. |
|
| JLB2017 |
|
AJ 154, 151, 2017 |
|
| Tok2021f |
orb - |
Tokovinin, A. |
2021IAUDS.204....1T |
| Tok2021f |
|
Inf. Circ. 204, 1, 2021 |
|
DISCOVERER
| idgroup |
discov |
author |
| 1 |
MTG |
Montagnier, G., Segransan, D., Beuzit, J.-L., Forveille, T., Delorme, P., |
| 1 |
MTG |
Delfosse, X., Perrier, C., Udry, S., et al. |
WDS HISTORIC DATA
| coord_2000 |
discov_num |
comp |
epoch |
obs |
pa |
sep |
mag_pri |
mag_sec |
spectr |
notes |
coord_arcsec_2000 |
| 19449-2338 |
MTG 4 |
|
2005 |
2 |
353 |
0.8 |
9.00 |
9.10 |
|
K |
194453.80-233759.3 |
| 19449-2338 |
MTG 4 |
|
2010 |
3 |
348 |
0.8 |
9.00 |
9.10 |
|
K |
194453.80-233759.3 |
| 19449-2338 |
MTG 4 |
|
2014 |
4 |
342 |
0.7 |
9.00 |
9.10 |
|
K |
194453.80-233759.3 |
| 19449-2338 |
MTG 4 |
|
2015 |
5 |
341 |
0.6 |
9.00 |
9.10 |
|
K |
194453.80-233759.3 |
| 19449-2338 |
MTG 4 |
|
2017 |
6 |
336 |
0.5 |
14.60 |
15.30 |
M4.5V |
NO |
194453.80-233759.3 |
| 19449-2338 |
MTG 4 |
|
2018 |
7 |
334 |
0.5 |
14.60 |
15.30 |
M4.5V |
NO |
194453.80-233759.3 |
| 19449-2338 |
MTG 4 |
|
2019 |
8 |
329 |
0.4 |
14.60 |
15.30 |
M4.5V |
NO |
194453.80-233759.3 |
| 19449-2338 |
MTG 4 |
|
2020 |
9 |
320 |
0.3 |
14.60 |
15.30 |
M4.5V |
NO |
194453.80-233759.3 |
| 19449-2338 |
MTG 4 |
|
2021 |
11 |
313 |
0.2 |
14.60 |
15.30 |
M4.5V |
NO |
194453.80-233759.3 |
If you need more information about this double, apply for a
data request form to the WDS.
WDS 19449-2338 MTG 4 : VISUAL OBSERVATIONS REPORTS
No records found.
WDS 19449-2338 MTG 4 : MEASURES
No records found.
WDS 19449-2338 : VIRTUAL EYEPIECE
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WDS 19449-2338 : ALADIN DSS IMAGE @
Error -22130
Not valid ID.
Error -22130
Not valid ID.
Error -27220
Not valid ID.
